Abstract

Background: Cancer is one of the greatest troubling maladies currently. It is believed that it is the second reason for death following cardiovascular maladies. Owing to the multiplicity of its types, stages and genetic basis, there is no existing drug to cure all types of cancer. Resistance to present drugs and severe adverse effects are other challenges in the struggle against cancer. In such pursuit, fluoroquinolones (FQs) have the potential as antiproliferative compounds due to safety, low cost, and absence of resistance.
 Aims: In this study, we aim to synthesize biologically active compounds that have dual anticancer and anti-lipase potential. Sixteen compounds were prepared, fully characterized, and studied through identification of IC50 values against the highly susceptible cancer cell lines.
 Methods: In this work we are concerned with synthesizing biologically active compounds that belong to fluoroquinolones (FQs) with dual anti-colorectal cancer and anti-lipase activity, owing to association between cancer and obesity, conduct titration and docking experiments to validate our hypothesis.
 Results: In vitro findings indicated that these compounds demonstrated promising anticancer activity against tested cell lines in micromolar range with a potency comparable to cisplatin. Compound 11 exhibited approximately doubled potency compared to cisplatin against SW620 colorectal cancer cell line with IC50 3.2 μM which proposes FQs as potent antiproliferative agents. The synthesized Fluoroquinolone (FQ) compounds were further screened for their in vitro anti-lipase potential. The findings demonstrated that all the screened compounds have demonstrated remarkable anti-lipase activity, as compared to control molecule orlistat. Compound 9 exhibited comparable activity to orlistat against pancreatic lipase with IC50 0.4 μM which proposes FQs as potent pancreatic lipase inhibitors.
 Conclusions: The anticancer potential of these derivatives is referred to their ability to inhibit Topo II which indicates that chelation is the mechanism of inhibition of Topo II emphasized with titration and docking experiments.

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